com.vaadin.server
Interface VaadinRequest

All Superinterfaces:

java.io.Serializable

All Known Implementing Classes:

VaadinPortlet.VaadinGateinRequest, VaadinPortlet.VaadinHttpAndPortletRequest, VaadinPortlet.VaadinLiferayRequest, VaadinPortletRequest, VaadinServletRequest

public interface VaadinRequest
extends java.io.Serializable

A generic request to the server, wrapping a more specific request type, e.g. HttpServletReqest or PortletRequest.

Since:

7.0.0

Author:

Vaadin Ltd

Method Summary

java.lang.Object	getAttribute(java.lang.String name) Gets a request attribute.
int	getContentLength() Returns the length of the request content that can be read from the input stream returned by getInputStream().
java.lang.String	getContentType() Returns the MIME type of the body of the request, or null if the type is not known.
java.lang.String	getContextPath() Returns the portion of the request URI that indicates the context of the request.
java.lang.String	getHeader(java.lang.String headerName) Gets the value of a request header, e.g.
java.io.InputStream	getInputStream() Returns an input stream from which the request content can be read.
java.util.Locale	getLocale() Gets locale information from the query, e.g.
java.lang.String	getParameter(java.lang.String parameter) Gets the named request parameter This is typically a HTTP GET or POST parameter, though other request types might have other ways of representing parameters.
java.util.Map<java.lang.String,java.lang.String[]>	getParameterMap() Gets all the parameters of the request.
java.lang.String	getRemoteAddr() Returns the IP address from which the request came.
java.lang.String	getRequestPathInfo() Gets the path of the requested resource relative to the application.
VaadinService	getService() Gets the vaadin service for the context of this request.
WrappedSession	getWrappedSession() Gets the session associated with this request, creating a new if there is no session.
WrappedSession	getWrappedSession(boolean allowSessionCreation) Gets the session associated with this request, optionally creating a new if there is no session.
boolean	isSecure() Checks whether the request was made using a secure channel, e.g.
void	setAttribute(java.lang.String name, java.lang.Object value) Defines a request attribute.

Method Detail

getParameter

java.lang.String getParameter(java.lang.String parameter)

Gets the named request parameter This is typically a HTTP GET or POST parameter, though other request types might have other ways of representing parameters.

Parameters:

parameter - the name of the parameter

Returns:

The paramter value, or null if no parameter with the given name is present

See Also:

ServletRequest.getParameter(String), PortletRequest.getParameter(String)

getParameterMap

java.util.Map<java.lang.String,java.lang.String[]> getParameterMap()

Gets all the parameters of the request.

Returns:

A mapping of parameter names to arrays of parameter values

See Also:

getParameter(String), ServletRequest.getParameterMap(), PortletRequest.getParameter(String)

getContentLength

int getContentLength()

Returns the length of the request content that can be read from the input stream returned by getInputStream().

Returns:

content length in bytes

See Also:

ServletRequest.getContentLength(), ClientDataRequest.getContentLength()

getInputStream

java.io.InputStream getInputStream()
                                   throws java.io.IOException

Returns an input stream from which the request content can be read. The request content length can be obtained with getContentLength() without reading the full stream contents.

Returns:

the input stream from which the contents of the request can be read

Throws:

java.io.IOException - if the input stream can not be opened

See Also:

ServletRequest.getInputStream(), ClientDataRequest.getPortletInputStream()

getAttribute

java.lang.Object getAttribute(java.lang.String name)

Gets a request attribute.

Parameters:

name - the name of the attribute

Returns:

the value of the attribute, or null if there is no attribute with the given name

See Also:

ServletRequest.getAttribute(String), PortletRequest.getAttribute(String)

setAttribute

void setAttribute(java.lang.String name,
                  java.lang.Object value)

Defines a request attribute.

Parameters:

name - the name of the attribute

value - the attribute value

See Also:

ServletRequest.setAttribute(String, Object), PortletRequest.setAttribute(String, Object)

getRequestPathInfo

java.lang.String getRequestPathInfo()

Gets the path of the requested resource relative to the application. The path be null if no path information is available. Does always start with / if the path isn't null.

Returns:

a string with the path relative to the application.

See Also:

HttpServletRequest.getPathInfo()

getContextPath

java.lang.String getContextPath()

Returns the portion of the request URI that indicates the context of the request. The context path always comes first in a request URI.

Returns:

a String specifying the portion of the request URI that indicates the context of the request

See Also:

HttpServletRequest.getContextPath(), PortletRequest.getContextPath()

getWrappedSession

WrappedSession getWrappedSession()

Gets the session associated with this request, creating a new if there is no session.

Returns:

the wrapped session for this request

See Also:

WrappedSession, HttpServletRequest.getSession(), PortletRequest.getPortletSession()

getWrappedSession

WrappedSession getWrappedSession(boolean allowSessionCreation)

Gets the session associated with this request, optionally creating a new if there is no session.

Parameters:

allowSessionCreation - true to create a new session for this request if necessary; false to return null if there's no current session

Returns:

the wrapped session for this request

See Also:

WrappedSession, HttpServletRequest.getSession(boolean), PortletRequest.getPortletSession(boolean)

getContentType

java.lang.String getContentType()

Returns the MIME type of the body of the request, or null if the type is not known.

Returns:

a string containing the name of the MIME type of the request, or null if the type is not known

See Also:

ServletRequest.getContentType(), ClientDataRequest.getContentType()

getLocale

java.util.Locale getLocale()

Gets locale information from the query, e.g. using the Accept-Language header.

Returns:

the preferred Locale

See Also:

ServletRequest.getLocale(), PortletRequest.getLocale()

getRemoteAddr

java.lang.String getRemoteAddr()

Returns the IP address from which the request came. This might also be the address of a proxy between the server and the original requester.

Returns:

a string containing the IP address, or null if the address is not available

See Also:

ServletRequest.getRemoteAddr()

isSecure

boolean isSecure()

Checks whether the request was made using a secure channel, e.g. using https.

Returns:

a boolean indicating if the request is secure

See Also:

ServletRequest.isSecure(), PortletRequest.isSecure()

getHeader

java.lang.String getHeader(java.lang.String headerName)

Gets the value of a request header, e.g. a http header for a HttpServletRequest.

Parameters:

headerName - the name of the header

Returns:

the header value, or null if the header is not present in the request

See Also:

HttpServletRequest.getHeader(String)

getService

VaadinService getService()

Gets the vaadin service for the context of this request.

Returns:

the vaadin service

See Also:

VaadinService